Differentiating bare soil and urban areas in Landsat 4-5 land cover classification

How is urban land cover classified?

The urban land cover is classified into five different classes Bare land, water, vegetation, residential and buildings and road network.
 

What is bare soil index?

Bare Soil Index (BSI) is a numerical indicator that combines blue, red, near infrared and short wave infrared spectral bands to capture soil variations. These spectral bands are used in a normalized manner.
 

What are the different types of lulc classification?

The Major Types of Techniques and Approaches for LULC Classification are Manual Classification, Numerical and Digital Classification, Hybrid Approach, and Other methods of classification in vogue.

What is normalized difference bare soil index?

The normalized difference soil index (NDSI) has been used to detect signature changes in un-mixing coastal marsh from satellite images [6]. A normalized difference bareness index (NDBaI) was proposed by Chen et al. [4] to distinguish bare land from other land use classes using Landsat data.
 

What is urban land cover?

In this work, urban land is defined as the Earth’s surface that is covered primarily by manmade materials, such as cement, asphalt, steel, glass, etc. This land cover type is referred to by different communities using different terms (with nuances), such as built-up land, impervious surface, and developed land.
 

What are the 3 main categories of urban land use?

The land in urban areas is used for many different purposes:

• leisure and recreation – may include open land, e.g. parks or built facilities such as sports centres.
• residential – the building of houses and flats.
• transport – road and rail networks, stations and airports.

How do you calculate bare soil index?

BSI = ((Red+SWIR) – (NIR+Blue)) / ((Red+SWIR) + (NIR+Blue)) The Bare Soil Index (BSI) combines blue, red, near infrared (NIR), and short wave infrared (SWIR) bands to capture soil variations.

What are the 3 index properties of soil?

The properties of soil index which are non-cohesive in nature are: Particle size distribution. Particle shape. Relative density.

What is the formula for NDWI for Landsat 5?

NDWI = (B03 – B05) / (B03 + B05)



Values description: Index values greater than 0.5 usually correspond to water bodies. Vegetation usually corresponds to much smaller values and built-up areas to values between zero and 0.2.

What are urban roads How are they classified?

Roads in urban areas should be classified into the following general types: (i) Expressways; (ii) Arterial streets; (iii) Sub-arterial streets; (iv) Collector streets; and (v) Local streets. The function of expressways is to cater for movement of heavy volumes of motor traffic at high speeds.

What are urban land use classes?

Four major urban LULC classes in the National Land Cover Database (NLCD) are developed open space, low intensity, medium intensity, and high intensity [7].
 

What are the basis of urban classification?

Urban areas are created through urbanization and are categorized by urban morphology as cities, towns, conurbations or suburbs. In urbanism, the term contrasts to rural areas such as villages and hamlets; in urban sociology or urban anthropology it contrasts with natural environment.